Shefeldt's junco nest with four eggs. Note on envelope credits image to Alex Walker.

Shefeldt's junco nest with four eggs. Note on envelope credits image to Alex Walker.

Shefeldt's junco nest with four eggs. Note on envelope credits image to Alex Walker.

William L. Finley using a ladder to climb to the top of a saguaro cactus to investigate a bird’s nest.

Thurber junco (Oregon snow bird) on nest with open mouth. Image note: contrasty plate.

Ruffed grouse chicks and eggs in nest. Image note: chicks blurred, not very good.

Ruffed grouse nest showing egg shells after eggs had hatched. Image note: large size.

Pelicans and cormorants. An adult bird on a nest. Image note: telephoto lens.

Thurber junco (Oregon snow bird) on nest. Image note: upright plate, small size.

Ruffed grouse nest showing egg shells after eggs have hatched. Taken over in swale.